Freeze when using USB mouse and keyboard

Audacity on 64bit ubuntustudio, HP7900SFF with 4Gb memory and ASUS GT610-SL-2GD3-L 2048MB (nvidia) graphics freezes constantly when using USB mouse and keyboard.
Replacing those with PS2 devices makes it freeze very seldom even when editing long 90+ minute audio tracks.

Topic split as it is unrelated to the original topic.

If this only occurs in Audacity, then it would seem that there is a conflict between your USB driver and your sound card. What sort of sound card is it?

It’s possible also that the Ubuntu open source Nvidia drivers are conflicting, in which case you can install proprietary Nvidia drivers instead: .